Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Tables)

Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2017
Accounting Policies [Abstract]  
Schedule of computation of potentially dilutive securities

For all periods presented in this report, convertible notes, stock options, and warrants were not included in the computation of diluted net loss per share because such inclusion would have had an antidilutive effect.


    Year Ended December 31,  
Excluded potentially dilutive securities (1):   2017     2016     2015  
Convertible note - principal     702,247       702,247        
Consulting warrants to purchase common stock           486,364       478,864  
Options to purchase common stock     578,813       915,572       752,324  
Unvested restricted stock     180,951              
Financing warrants to purchase common stock     2,340,828       3,316,208       975,380  
Total potential dilutive securities     3,802,839       5,420,391       2,206,568  


  (1) The number of shares is based on the maximum number of shares issuable on exercise or conversion of the related securities as of the period end. Such amounts have not been adjusted for the treasury stock method or weighted average outstanding calculations as required if the securities were dilutive.